Nut-lock



G. P; Looms.

(ModeL) NUT LOCK.

Patented July 10, 1883..

Fay. "1.

[22213222501 M. Ma;

N. PETE S. Plwwurha n nur, Wahington. IL 1:

UNITED STATES PATENT @FEICE.

oEonoE P. LOOMIS, OF ALBANY, NEW roan.

NUT-LOCK.

SPECIFICATION forming part of Letters Patent No. 281,196, dated July 10,1883.

Application filed May 17, 1883.

To all whom it may concern:

Be it known that I, GEORGE I. Looms, a citizen of the United States,residing in the city of Albany, in the county of Albany and State of NewYork, have invent ed certain new and useful Improvements in NutLocks, ofwhich the following is a full, clear, and exactdescription, referencebeing had to the accompanying drawings, forming a part of thisspecification.

My invention relates to nut-locks to be used in connection with thebolts and nuts which are applied for the retention of fish -bars onrailway-rails.

The object of my invention is to produce a simple and cheap nut-dock forthe purpose stated, and my special improvement is hereinafter pointedout in the claims.

In the drawings, Figure 1 is a perspective view of the nut-lock asapplied to the bolt and nut of a fish-bar. Fig. 2 is an elevation of thenut-lock and nut. Fig. 3 is an elevation of the washer.

My nut-lock is composed of a fiat washerplate, a fiat button orlocking-plate, and a rivet uniting the two.

In the drawings, the letters A A designate abutting rails.

B is the fish-plate; G, the bolt for retaining said fish-plate to therail.

E represents the washer-plate, which has a square portion approximatingthe size of the nutwith which it is to be used, and an exten sion, E,which forms a prolongation of one side of the plate, but is cut away atthe other side. This form of the washer allows of the cutting of twoblanks from a rectangular piece of metal with very little waste, theextension E being about half the width of the square portion. The squareportion of thewasher is centrally perforated at a. for the passage ofthe bolt. The washer is also perforated at c for a rivet. The line c,which is parallel with the side 1 of the washer, is tangential to thecircumference of perforation a on one side and of perforation c on theopposite side. The locking-piece or button F is pivoted to the extensionE of washer E by a rivet passing through holee in the button and hole 0in the washer. A rectangular notch is formed in one I'Model.)

corner of this button. One side of this notch is designated by th eletters, the other side by t.

D represents the nut, which is screwed onto bolt 0 after the washerElias been placed there on. The nut is turned in the direction of thearrow to screw it on the bolt. The button F is turned back to permit thenut to be screwed home. The nut is turned a little past its lockedposition, as shown in dotted lines, Fig. 2. The button F is then swungtoward thenut until the side i of the notch bears against the side (2 ofthe nut, or against the corner thereof. The side 8 of the notch in plateF must be at such distance from the rivet as to permit a lit-- tle playbetween the side (Z of the nut and said side 8 of the button, but not sofar from bolt G (when the button is swung toward the nut) as to permitthe corner of the nut to pass the side 8 without engagement therewith.W'heu the button F is thus swung into engagement with the nut, said nutcannot be turned backward because of the engagement of its corner withthe side 3 of the button. The button is held from going too far by theengagement of the side i of its notch with side d of the nut. To loosenthe lock the nut is tightened to the position shown in dotted lines andthe button then thrown back. The extension. E of the washer is of suchlength as to find a bearing on the flange I) of the rail, as shown inFig. 1, so as to prevent the turning of the entire lock backward.

I am aware that numerous nutlocks have been invented prior to myinvent-ion, some of them being similar in construction and some in theirmode of operation.

The advantages I gain by my construction are in the economy ofproduction and facility of application.

\Vhat I claim is- 1. A nut-lock consisting of aflat washer having arectangular portion perforated for the passage of the bolt, and theextension E, of about the form and proportions hereinbefore described,rivet, and a flat locking button or plate, F, pivoted to the washer at cby the rivet, said plate F being notched at s 1, as de scribed, and forthe purpose stated.

2. The combination, with a railway-rail and fish-plate, of a nut-lockconsisting of a flat button, F, of the form shown and described,

washer having a perforated rectangular por- In testimony whereof I haveafiiXed my si tion, with the extension E, as described, a fiat nature inpresence of two witnesses.

pivoted to the washer-plate at c, said extension GEORGE P. LOOMIS. E ofthe washer-plate being of such length as to find a bearing on the flangeb of the rail when the nut-lock is adjusted in position, all as shownand set forth.

\Vitnesses:

SAMUEL W. WVHITMORE, HOWARD HENDRICKSON.

